CN105803887A - Barrier-free construction method for base layer of city and town road - Google Patents
Barrier-free construction method for base layer of city and town road Download PDFInfo
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- CN105803887A CN105803887A CN201610181125.8A CN201610181125A CN105803887A CN 105803887 A CN105803887 A CN 105803887A CN 201610181125 A CN201610181125 A CN 201610181125A CN 105803887 A CN105803887 A CN 105803887A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
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- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to the technical field of road construction and particularly discloses a barrier-free construction method for a base layer of a city and town road.The barrier-free construction method for the base layer of the city and town road is characterized by comprising the following steps of 1, placing a round well frame at an inspection well, filling the inspection well with aggregate chips or yellow sand, covering the inspection well with a steel plate, marking the position of the inspection well on a side form before paving is conducted, and making workers mark the position of the inspection well immediately after paving for each layer is completed; 2, in the paving process, adjusting the advancing speed of a paver to achieve continuous paving, and after paving is completed, conducting height measurement immediately in time; 3, after paving reshaping is ended, checking the water content, and conducting rolling compaction in time, wherein rolling compaction is conducted in three stages, namely preliminary rolling compaction, secondary rolling compaction and final rolling compaction; 4, after construction of a pitch middle surface layer is completed, digging the inspection well out, pouring concrete integrally, and mounting a well cover of the inspection well.The method is simple, the periphery of the inspection well is backfilled to a road bed, in the base layer paving process, no barrier exists, no impurity falls into the well, when completion cleaning-up is conducted, the construction is accepted one time, and time and labor are saved.
Description
(1) technical field
The present invention relates to technical field of road construction, particularly to the accessible construction method of a kind of town road basic unit.
(2) background technology
Traditional roadbase paves construction method, for ensure around inspection shaft can compacting and paver easily by, the inspection shaft in road often constructs one layer, grows tall once.The shortcoming of this method that paves is: inspection shaft is because repeatedly rolling compromised quality; subsiding occurs in road around inspection shaft, crackle and damage; pit shaft is often broken by construction machinery; the existence of barrier during owing to paving; paver is shut down, start place forms wave and easily causes vehicle pitching; and every vice-minister's well is time-consuming takes material, in well, often fall into foreign material.
(3) summary of the invention
The present invention is in order to make up the deficiencies in the prior art, it is provided that a kind of simple to operate, raising construction quality, the accessible construction method of town road basic unit of reduction of erection time.
The present invention is achieved through the following technical solutions:
The accessible construction method of a kind of town road basic unit, is characterized by, comprises the steps: that (1) places circular crib at inspection shaft position, inside rockfill bits or yellow sand, covering steel plate, be labeled on side form by the position of inspection shaft before paving, the every layer of workman that paved marks inspection shaft position immediately；(2) adjust the gait of march of paver when paving, accomplish to pave continuously, after paving, carry out the measurement of higher degree in time；(3) pave after shaping, check water content, roll in time, roll a point first pressing, multiple pressure and final pressure three phases and carry out；(4) digging pine after final set before having rolled initial set of gathering materials, in Colophonium, crib is taken out after completing by surface construction, formed by integrally casting concrete installation check well well lid.
Present invention roadbase suitable in town road paves.When paving, inspection shaft open height is equally high with roadbed, accomplishes accessible when basic unit paves；By the roadbed that is backfilled to around inspection shaft, in road structure, the compactness around inspection shaft has reached requirement；Inspection shaft once plays pad, it is to avoid in road structure construction, road roller repeatedly rolls the destruction that group inspection shaft causes；Colophonium takes out after surface construction crib, general with install vertical along lapicide's sequence synchronous construction, it is to avoid the digging of inspection shaft position after structural laminated is real, duration holding time is short.
The more excellent technical scheme of the present invention is:
In step (1), the diameter of crib is 1.7m, be highly the thickness of every Rotating fields layer, be provided with staggered support bar in the middle of crib, it is to avoid the digging of inspection shaft position after structural laminated is real, improves efficiency of construction.
In step (2), when paving, two pavers are constructed together, and front and back 20-30 rice of being separated by synchronizes to pave forward, and rolls together, only installs template in half range road both sides.
Every paver sets 10 workmans altogether, above each workman in hopper both sides is responsible for removing the barrier in paver crawler belt traveling front, 2 responsible unwrapping wire of hanging wire person are timely, two computer debugging technique personnel detect the glacing flatness and thickness that pave at any time and adjust paving thickness, the each workman in screed both sides is responsible for filling up unreal position, paver both sides, and road roller sweeper 2 is responsible for cleaning the material that when road roller rolls, the upper adhesive tape of patch stone roller gets up.
In step (3), adopting two vibrated rollers to roll, it then follows the principle that after first light, weight is light again, first pressing vibrated roller static pressure 1 time, multiple pressure is first gently shaken with vibrated roller 2 times, then shakes by force with vibrated roller 3 times again, three stone roller final pressure 2 times.
The inventive method is simple, is backfilled to roadbed around inspection shaft, and manhole cover on well head is accomplished accessible, and in well, no-sundries is fallen into, once passes through during final cleanup when basic unit paves, time saving and energy saving.
The present invention improves the construction quality of basic unit, and owing to inspection shaft is embedded under basic unit, when paving, basic unit once survives, it is ensured that Base Smoothness, and road structure construction is accomplished without any letup and formed entirety, and structure stress is good；Improve the quality of inspection shaft, once play pad due to inspection shaft, it is to avoid in road structure construction, road roller repeatedly rolls the destruction that group inspection shaft causes；Once play pad due to inspection shaft, play pad saving of work and time than repeatedly, shorten the duration.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the process flow diagram of the present invention；
Fig. 2 is the structural representation of crib of the present invention.
(5) detailed description of the invention
Embodiment: the accessible construction technology process of town road basic unit and key points for operation
One, operating condition
1. the construction of roadbase sub-layer is complete, qualified on inspection.
2. material is substantially on deck, meets design, code requirement through on-the-spot retrial.
Two, technique preparation
1. pair concealed work carries out an acceptance inspection, and it is qualified to recognize through label.
2. do production mix proportion, statistical material quantity according to designing requirement, work out material planning.
3. arrangement and method for construction parties concerned authorization, and tell somebody what one's real intentions are to operating personnel.
4. recovering center line, every 20 meters of straightway sets a king-pile, and the every 10-15m of horizontal curve section surveys and sets a king-pile, and measuring simultaneously paves area width.Pave and datum line should be adopted can to adopt steel wire rope, it should be noted that tension.
Three, construction technology main points
Paving: ensure the flatness of sub-layer, survey elevation hanging wire accurate, paver accurately controls.
Four, working procedure
1. preliminary preparation
(1) examination of sub-layer, should carry out an acceptance inspection to sub-layer according to " town road engineering construction and inspection of quality specification " CJJ1-2008 before water stability detritus construction.
(2) preparation of template: the effect of template be to ensure that edge can compacting, directly suitable, elevation meets designing requirement, and current company adopts concrete side form, it is ensured that the flatness of roadbase and the compactness of basic unit's edge and elevation qualification rate.(building accurate unwrapping wire during road base concrete side mold, strict control substrate concrete side form straight cis degree and elevation of top surface, can effectively control roadbase paving width and thickness, save material usage, reduce waste of material) simultaneously.Before paving, arrangement personnel clear up the foreign material such as the surface dust of substrate surface, hydrops, go to a grassroots level with sprinkling truck is moistening before starting haul, and watering amount is with not viscous tire for standard.
2. the production of compound
(1) design mixture proportion: the unit with test qualification provides design mixture proportion according to the raw material sent and designing requirement.Including former material test report, design mixture proportion, cement dose titration curve.Note the raw material that send must with construction time material therefor consistent, as cement change producer, lot number etc. must titration cement dose curves again.
(2) coordination in works
1. the moisture content of stone powder, aggregate chips；
2. scene is done screening adjust the ratio of various materials according to stone, stone powder, and raw material answers compliant to require (the granule compositing range of cement stabilized soil, the project of raw material quality control, frequency and quality standard etc.)；
3. the experimental data adjusted design match ratio of when on-the-spot material is coordinated to draw coordination in works according to cement stabilized macadam；
4. the determination (state according to the optimum moisture content batch of laboratory) of water content, should be a bit larger tham optimum moisture content (but must not exceed+2%) or formulate according to weather condition, and making compound transport to water content when rolling after scene paves can close to optimum；
5. cement, flyash, white lime are rechecked on request in time.According to mix-proportion adjustment mixer parameter.
(3) trial mix: survey the unit weight under various former material different moisture content situation, survey the weight of various raw material belt conveyors every meter, according to coordination in works and blending station yield hourly (not can exceed that rated output), the rotating speed of the various material conveying motor of conversion mixer, carry out trial mix.The raw material of mixing plant feeding mouth must separate, and test-run a machine material must not enter boundary of works area.
(4) taking sample after discharging 2-3 car to test, whether measured moisture content, grating, cement dose can meet design requirement, and water content can adopt fried dry method.
3. transport
The compound produced adopts dumper transport, when haulage vehicle enters job site will at a slow speed, at the uniform velocity advance, in case perturbing roadbed.The selection of vehicle model: the end of the vehicle back bucket distance far from ground is sufficiently high, when toppling over compound in hopper of paver can not trailing wheel liftoff, automatic backboard can not be supported on the hopper of paver, easily selects the loading capacity steyr more than 15 tons or the Yellow River car.Vehicle neutral is advanced forward under the promotion of paver, and simultaneously often brake is in case vehicle forward compound is poured on outside hopper, avoids vehicle and is promoted when brake and slide forward, destroys roadbed.Vehicle fleet size is suitable for, and has remained that haul vehicle waits that discharging guarantees that paver is worked continuously before paver.The principle that running route is determined does not destroy finished product, reduces vehicle and reverses end for end in type roadbed.
4. test section construction
(1) coefficient of loose laying
By the method that test section determines coefficient of loose laying, specify certain point (exact position), measure this point height with level gauge before paving, measure this some void thickness elevation with level gauge after paving, elevation (this point should meet degree of compaction standard) after measuring this compacting with level gauge after final compacting.Coefficient of loose laying is tried to achieve by comparing.When surveying coefficient of loose laying, the vibration class of paver oscillating plate should be recorded, and corresponding with coefficient of loose laying.
(2) compacting counting and facility
The record type of road roller, tonnage, compacting counting, the oscillating plate vibration class of paver, timely sampling test, draw construction parameter.
(3) adjust paver and have related parameter
Keep feed and spreading speed uniform.Spreading speed controls to work continuously at 2-4m/min, three cars are had at least to treat discharging before paver, large-tonnage dumper is adopted to add covering haul, dumper retreats toward in paver during discharging, distance from paver 10-30cm stops hanging sky, push dumper by paver to advance and discharging, it is to avoid haul truck collision paver causes irregularity.
After the width of screed is completed, carry out camber adjustment according to the amount of deflection of Pavement Design, during adjustment, should be noted the amount of deflection at screed two ends and deformation.During two-shipper connection paving, adjust screed according to the width of every unit ironing machine, simultaneously corresponding adjustment adjustable screw and vibrating device, check glacing flatness and the integral rigidity of screed, to ensure the flatness on road surface.When adjusting the length of screed, should be symmetrical, paver otherwise can be caused to wander off, and because the effect of inertia of compound makes the pressure of compound before screed inconsistent, cause the difference of paving thickness on transverse section.When the abrasion of screed bottom surface or gross distortion, to re-use after maintenance reaches standard, it is ensured that spreading quality.
The determination of paving thickness and the adjustment of screed initial elevation, at the benchmark preparing the three square chocks of block length as paving thickness that paves, chock width 5-10cm, length and screed, along the equivalently-sized of road transverse direction or slightly long, are highly the loose laying depth of paving layer.After screed places, adjust its initialization elevation angle, namely rotate adjusting screw rod, make screed leading edge raise formation initialization angle.Should be noted and frequently do not adjust THICKNESS CONTROL bar, because the change at the work elevation angle needs to recover a period of time, within the time period, the flatness of paving layer is subjected to impact.After thickness is determined, accurate recording elevation angle position of rule.
Adopting a paver when function that paves on the same stage during paved mixture meets width requirement, it is impossible to adopt two-shipper connection paving when meeting width requirement, first from horizontal wall inscription lower Kai Pu, two pavers one in front and one in back advance at a distance of 20-30m stagger arrangement as far as possible.To when running into the special circumstances such as the widened section of road, 'bus harbors', personnel are it is noted that the thickness of artificial loading and machine spreading immediately, levelling at any time when rolling.
Cement stabilized macadam base test section reference record table:
5. pave
Adopt well lid pre-buried method when basic unit paves, in paving process, accomplish that " accessible " constructs.
Place circular crib at inspection shaft position before paving, inside rockfill bits or yellow sand prevent crib from deforming to resist lateral pressure, cover steel plate, make the aggregate chips in crib or yellow sand not by compacting, before paving, the position of inspection shaft is labeled on side form, the every layer of workman that paved marks well position immediately, digs pine before having rolled initial set of gathering materials after final set.
Adjust the gait of march of paver when paving, in order to match with the freight volume of compound, accomplish that continuous uniform paves.The coefficient of loose laying determined according to test section when formally paving carries out.The measurement of higher degree is carried out in time after paving.
When two pavers are constructed together, front and back about 20-30 rice of being separated by synchronizes to pave forward, and rolls together, so installs template in half range road both sides.
Every paver sets 10 workmans altogether, and its groundwork is:
(1) above each workman's primary responsibility in hopper both sides removes the barrier in paver crawler belt traveling front, in case causing the fluctuating of paver self, causes the flatness paved defective；
(2) hanging wire person 2, primary responsibility unwrapping wire is timely, construction is taken the necessary measures as: ground cap is put at line two ends, and crossing place construction line is wounded in action bar flag etc., it is ensured that construction line will not injure other people；In work process, note the change adjustment construction line of job site；
(3) set two computer debugging technique personnel below, mainly detect the flatness and thickness that pave the paving thickness adjusting paver in time at any time；
(4) each workman in screed both sides is responsible for filling up unreal position, paver both sides with spade, it is ensured that the limit that paves puts in place；These personnel are responsible for out-of-flatness, low-lying place are carried out feed supplement, leveling at any time, should process local coarse aggregate " nest " especially, and fill up with newly mixing compound；
(5) road roller sweeper 2, primary responsibility cleans the material that when road roller rolls, the upper adhesive tape of patch stone roller gets up, to ensure the cleaning in stone roller face, the smooth light in the road surface after rolling, immaculate.Process the turbine that cannot eliminate in roller compaction process.
6. roll
Roller compaction process is undertaken by first pressing, multiple pressure, final pressure three phases:
After shaping, check water content, roll in time.Adopt two vibrated rollers (road roller is with a paver).Roll and should follow the principle that first light rear weight is light again.First pressing vibrating roller static pressure 1 time, multiple pressure is first gently shaken with vibrating roller 2 times, then shakes by force with vibrating roller 3 times again, three stone roller final pressure 2 times.
Attention Points in roller compaction process: should start to walk when rolling slow brake slowly, is hoisted by lower and overlapping 1/2 takes turns width, stepped rolls, and does not turn to, and should retreat to starting point, start next step and roll on uncompacted road surface.
From cement stabilized macadam mix to last roller-compaction, complete work before this batch of jelling time must be controlled total time, to ensure the entirety of cement treated material.
7. health preserving and traffic control
Section after completion, carries out health preserving, watering health preserving after first covering with felt, sprinkling truck should median U-turn beyond health preserving district, watering number of times looks weather condition, is advisable keeping moistening, and preserving period is generally 7 days, during health preserving, except watering, answers close traffic.
After lower floor rolls, it is possible to (control in 24 hours) making last layer immediately, do not need special preserving period.Can also repave after health preserving 7d and build last layer.
8. other
(1) transverse joint, paves and should not interrupt, exceed jelling time when the break period, should by treatment of construction joints.Treatment of construction joints scheme: again during making, should excavate material low to loose end material or intensity, and scrapes out laterally (vertical with Lu Zhizheng line) section vertically downward, and this section of face elevation should meet design altitude moistening, swabbing mud of sprinkling water.
(2) longitudinal seam is avoided, adopt two pavers (or a paver) be one in front and one in back separated by about 20-30 rice synchronize pave forward, when another width is spread out in tune, giving and stay the 30-40 centimetre of seam crossing compacting together with new paved mixture of uncompacted previous width, compacting complete time should control in jelling time.
When cannot be avoided longitudinal seam, longitudinal joint must vertical connection, forbid mitered, and process as follows.Before another width that paves, by the basic unit's edge strength after previous width health preserving and the underproof removing of elevation, and brush plain-water slurry processes.
9. inspection shaft plays pad
Inspection shaft crib is positioned and covered, and successively pave basic unit, and in Colophonium, crib is taken out after completing by surface construction, then formed by integrally casting concrete installation check well well lid.
Five, material and equipment
1. material
Coarse-grained soil and middle grain soil used by cement stabilized soil should meet following requirement:
(1), when cement stabilized soil is used as underlayment, the maximum particle diameter of individual particle is not to be exceeded 37.5mm.The granule composition of cement stabilized soil should in No. 1 grading limit listed by upper table, and the coefficient of uniformity of soil should be greater than 5.The liquid limit of fine grained soil is not to be exceeded 40%, and plasticity index is not to be exceeded 17.For middle grain soil and coarse-grained soil, in soil, the granule content less than 0.6mm is below 30%, and plasticity index can be slightly larger.In real work, the soil that coefficient of uniformity is more than 10, plasticity index is less than 12 should be selected.The plasticity index soil more than 17, should adopt lime stabilization, or with cement and Calx comprehensive stability.For middle grain soil and coarse-grained soil, No. 2 gratings in table should be adopted, but granule content and the plasticity index less than 0.075mm can be unrestricted.
(2), when cement stabilized soil is used as basic unit, the maximum particle diameter of individual particle is not to be exceeded 31.5mm.The granule composition of cement stabilized soil should in No. 3 grading limits listed by table 3.2.2.To rubble used or gravel, answer prescreening to become 3-4 size fractionated, then coordinate, make granule composition meet grading limit listed by table.
(3) crush values of cement stabilized soil medium stone or gravel should meet the following requirements:
Basic unit:
Highway and Class I highway are not more than 30%
Two grades and two grades are not more than 35% to get down the highway
Underlayment:
Highway and Class I highway are not more than 30%
Two grades and two grades are not more than 40% to get down the highway
(4) Portland cement, portland slag cement and Portland pozzolana cement can be used in stable soil, and cement should have product certificate and certificate of quality file, should sample the qualified rear use of retrial after marching into the arena.
Select the cement of presetting period more than 4h and final setting time longer (should at more than 6h).Should not use quick-hardening cement, high-early (strength) cement and in wet condition rotten cement.The cement of label 325 or 425 should be adopted.
(5) Calx in comprehensive stable soil should be slaked lime powder or calcium lime powder.
(6) every drinking water (containing livestock drinking water) is used equally to cement stabilized soil construction.
2. main construction equipment
(1) detection equipment: compactness appliance a set of (normal sand, platform balance, filling sand bucket, pallet, baker, size spoon, hairbrush etc.), core drilling machine.
(2) major mechanical and instrument
Six, quality control
1. mixture gradation
The aggregate pile up separately of mixing station all size, arranges partition wall between heap and heap, carries out draining flood control installation, and fine aggregate adopts paulin to cover, in case fines runs off.Can not there is interruption phenomenon in the material of feeding bin, it is ensured that reaches at any time in feed bin to buy securities with all one's capital, reinforced in storehouse at any time.Avoid zig zag during transport, bring to a halt;For preventing compound from producing the big rubble concentration phenomenon in local in paver, before car should unsnatch material as early as possible and drive away, after car make virgin material mix with clout in hopper toward batch turning in paver as early as possible, forbid that feeding material scraping plate exposes phenomenon generation.Set special messenger during construction and process local isolation and the phenomenon of compound adhesion tyre roller, the local segregation phenomenon occurred after paving is processed with fines in time, roll with other compounds simultaneously, guaranteeing integral construction quality, after rolling, indivedual places compound is loose or the nest local that gathers materials is excavated and again filled.
2. ash dosage
Ash dosage control is the requirement of design mixture proportion, timely sampling Detection.
3. water content
Transport with cart and use paulin to cover, it is ensured that compound is in optimum moisture content state all the time.
4. become live time
Cement stabilizing compound with mix with, it is to avoid become live time to exceed jelling time, reduce strength of cement.
5. maintenance
After rolling end, cover with hair is viscous in time, watering health preserving 7 days, it is desirable to remain surface wettability.During watering health preserving, forbid other vehicle pass-through.
6. organization of data
After the completion of each construction section, in time data is arranged as requested.Construction technology documentation requirements is accurately, in time, truly, completely.
7. stablize great soil group basic unit and underlayment dominant item, general data and tolerance:
Dominant item: raw material quality inspection meets the requirements；The every 1000m of compactness2, every compacted lift spot-check 1 point；Basic unit >=97%, underlayment >=95%；Basic unit, 7 days unconfined compressive strengths of underlayment meet designing requirement, every 2000m2, every compacted lift spot-check 1 group.
General data: surfacing, solid, seam smooth-going, without substantially thick, fine aggregate concentration phenomenon, without passage, crack, lagging, loose, buoyant.
Tolerance
8. quality record
(1) inspection lot quality inspection record；(2) compactness log；(3) without lateral spacing intensity log；(4) cement testing report；(5) stone test report；(6) cement dose test report；(7) mixture moisture content test report.
9. related specifications, code
(1) " highway road surface construction technique normalizing " (JTJ034-2000)；
(2) " highway engineering stabilized with inorganic binder testing of materials code " (JTJ057-94)；
(3) " town road engineering construction and inspection of quality specification " CJJ1-2008.
Seven, safety measure
1. perform JGJ146-2004 " construction site environment and sanitary standard " and Jinan City " municipal works modern-style construction regulation ".Before construction, the special safe practice of establishment is told somebody what one's real intentions are, and in advance construction management people and operator is carried out safe practice and tells somebody what one's real intentions are.
2. couple workmen carries out on-the-job training, is familiar with relevant act of technique for security and standard.Safety helmets must be worn for site operation personnel.
3., when running into dense fog or night illumination deficiency, should stop operation.
4. during concreting, plant equipment used is taked rainproof, antifreezing measures, electronic facility are arranged earth leakage protective device, arrange by " machine, a case, a lock, a leakage "；Build more than concrete chance moderate rain to stop operation.
5. when electricity consumption plant maintenance, cleaning, it is necessary to first power-off, then clearing up and designate a special person to take charge, distribution box need to be locked, and by cleaning, personnel take key.
6. the safety devices such as direction, braking, light must be checked by concrete mixer before construction, just allows operation under guaranteeing situation of good performance.
Eight, environmental practice
1. perform JGJ146-2004 " construction site environment and sanitary standard " and Jinan City " municipal works modern-style construction regulation "
2. job site should often be sprinkled water moistening, it is prevented that airborne dust.
3. building waste should be cleared in time and process to appointed place.Forbid to shed everywhere building waste.
Nine, performance analysis
1. adopt control roadbase pave and vertical along stone installs time elevation datum, greatly reduce surveying setting-out workload, it is to avoid repeatedly repeating the error that unwrapping wire brings, degree of accuracy is high, improve work efficiency, the shortening construction period, save a large amount of manpower and materials.
2. adopt this construction can strictly control roadbase paving width and thickness, reduce material usage, reach the purpose saved energy and reduce the cost.
3. enable the road structure degree of compaction around inspection shaft reach requirement.
4. improve project progress.Road structure can be breathed out into by a gas, it is to avoid does a Rotating fields, plays inspection shaft of pad, and duration holding time is short.
5. improve the quality of inspection shaft.In rolling due to road structure, what inspection shaft avoided road roller repeatedly rolls the destruction caused.
6., owing to well head covers, in well, no-sundries falls into, and once passes through during final cleanup.
7. adopt town road basic unit every inspection shaft cost of accessible construction to reduce:
(1) conventional construction method generally need to play pad 5 times, preparation of construction time decreased 4 times, calculated by 1 hour every time, saves altogether: 4 hours/8 hours * 56 yuan/work day=28 yuan.
(2) in inspection shaft, garbage-cleaning, by 2 people, calculates for 2 hours:
Save altogether: 56 yuan/work day * 2 people * 2 hours/8 hours=28 yuan.
Adopt new technology construction time save prime cost:
Every inspection shaft is added up to save: 28 yuan+28 yuan=56 yuan.
Claims (5)
1. the accessible construction method of town road basic unit, is characterized by, comprises the steps: that (1) places circular crib at inspection shaft position, inside rockfill bits or yellow sand, covering steel plate, be labeled on side form by the position of inspection shaft before paving, the every layer of workman that paved marks inspection shaft position immediately；(2) adjust the gait of march of paver when paving, accomplish to pave continuously, after paving, carry out the measurement of higher degree in time；(3) pave after shaping, check water content, roll in time, roll a point first pressing, multiple pressure and final pressure three phases and carry out；(4) in Colophonium, crib is taken out after completing by surface construction, formed by integrally casting concrete installation check well well lid.
2. the accessible construction method of town road basic unit according to claim 1, it is characterised in that: in step (1), the diameter of crib is 1.7m, is highly the thickness of every Rotating fields layer, is provided with staggered support bar in the middle of crib.
3. the accessible construction method of town road basic unit according to claim 1, it is characterised in that: in step (2), when paving, two pavers are constructed together, before and after 20-30 rice of being separated by synchronize to pave forward, and roll together, only install template in half range road both sides.
4. the accessible construction method of town road basic unit according to claim 2, it is characterized in that: every paver sets 10 workmans altogether, above each workman in hopper both sides is responsible for removing the barrier in paver crawler belt traveling front, 2 responsible unwrapping wire of hanging wire person are timely, two computer debugging technique personnel detect the glacing flatness and thickness that pave at any time and adjust paving thickness, the each workman in screed both sides is responsible for filling up unreal position, paver both sides, and road roller sweeper 2 is responsible for cleaning the material that when road roller rolls, the upper adhesive tape of patch stone roller gets up.
5. the accessible construction method of town road basic unit according to claim 1, it is characterized in that: in step (3), two vibrated rollers are adopted to roll, follow the principle that first light rear weight is light again, first pressing vibrated roller static pressure 1 time, multiple pressure is first gently shaken with vibrated roller 2 times, then shakes by force with vibrated roller 3 times again, three stone roller final pressure 2 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610181125.8A CN105803887A (en) | 2016-03-28 | 2016-03-28 | Barrier-free construction method for base layer of city and town road |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610181125.8A CN105803887A (en) | 2016-03-28 | 2016-03-28 | Barrier-free construction method for base layer of city and town road |
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| CN105803887A true CN105803887A (en) | 2016-07-27 |
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| CN (1) | CN105803887A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522073A (en) * | 2016-11-18 | 2017-03-22 | 苏州中恒通路桥股份有限公司 | Construction method of high-added water-stable milled waste base |
| CN107151961A (en) * | 2017-06-06 | 2017-09-12 | 合肥雪立歆农业科技有限公司 | A kind of construction method of town road |
| CN108425306A (en) * | 2018-02-01 | 2018-08-21 | 中国十七冶集团有限公司 | A kind of receipts well guard method of cell road |
| CN114837038A (en) * | 2022-04-28 | 2022-08-02 | 中交一公局集团有限公司 | Construction method of barrier pedestrian path permeable base layer by adopting paver |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004332522A (en) * | 2003-04-17 | 2004-11-25 | Save Machine Co Ltd | Overlay construction method, cutting overlay construction method, and paving construction method |
| CN102409594A (en) * | 2011-09-16 | 2012-04-11 | 无锡市政设计研究院有限公司 | Method for carrying out compaction on pavement around well through rolling and transitional well cover for compaction |
| CN204000950U (en) * | 2014-07-29 | 2014-12-10 | 长安大学 | A kind of flexible pavement manhole periphery compacting transition well lid |
| CN104652238A (en) * | 2015-01-07 | 2015-05-27 | 南通大学 | Barrier-free base construction method for urban roads |
-
2016
- 2016-03-28 CN CN201610181125.8A patent/CN105803887A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004332522A (en) * | 2003-04-17 | 2004-11-25 | Save Machine Co Ltd | Overlay construction method, cutting overlay construction method, and paving construction method |
| CN102409594A (en) * | 2011-09-16 | 2012-04-11 | 无锡市政设计研究院有限公司 | Method for carrying out compaction on pavement around well through rolling and transitional well cover for compaction |
| CN204000950U (en) * | 2014-07-29 | 2014-12-10 | 长安大学 | A kind of flexible pavement manhole periphery compacting transition well lid |
| CN104652238A (en) * | 2015-01-07 | 2015-05-27 | 南通大学 | Barrier-free base construction method for urban roads |
Non-Patent Citations (2)
| Title |
|---|
| 杨伟达: "沥青混凝土路面施工现场控制技术", 《交通世界》 * |
| 黎自安: "沥青混凝土路面施工组织和工艺主要环节", 《广西质量监督导报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522073A (en) * | 2016-11-18 | 2017-03-22 | 苏州中恒通路桥股份有限公司 | Construction method of high-added water-stable milled waste base |
| CN107151961A (en) * | 2017-06-06 | 2017-09-12 | 合肥雪立歆农业科技有限公司 | A kind of construction method of town road |
| CN108425306A (en) * | 2018-02-01 | 2018-08-21 | 中国十七冶集团有限公司 | A kind of receipts well guard method of cell road |
| CN108425306B (en) * | 2018-02-01 | 2019-08-27 | 中国十七冶集团有限公司 | A kind of receipts well guard method of cell road |
| CN114837038A (en) * | 2022-04-28 | 2022-08-02 | 中交一公局集团有限公司 | Construction method of barrier pedestrian path permeable base layer by adopting paver |
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